Line data    Source code

       1             : #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
       2             : #define BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
       3             : 
       4             : // MS compatible compilers support #pragma once
       5             : 
       6             : #if defined(_MSC_VER) && (_MSC_VER >= 1020)
       7             : # pragma once
       8             : #endif
       9             : 
      10             : //
      11             : //  detail/sp_counted_impl.hpp
      12             : //
      13             : //  Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
      14             : //  Copyright 2004-2005 Peter Dimov
      15             : //
      16             : // Distributed under the Boost Software License, Version 1.0. (See
      17             : // accompanying file LICENSE_1_0.txt or copy at
      18             : // http://www.boost.org/LICENSE_1_0.txt)
      19             : //
      20             : 
      21             : #include <boost/smart_ptr/detail/sp_counted_base.hpp>
      22             : #include <boost/smart_ptr/detail/deprecated_macros.hpp>
      23             : #include <boost/core/checked_delete.hpp>
      24             : #include <boost/core/addressof.hpp>
      25             : #include <boost/config.hpp>
      26             : 
      27             : #include <memory>           // std::allocator, std::allocator_traits
      28             : #include <cstddef>          // std::size_t
      29             : 
      30             : namespace boost
      31             : {
      32             : 
      33             : namespace detail
      34             : {
      35             : 
      36             : // get_local_deleter
      37             : 
      38             : template<class D> class local_sp_deleter;
      39             : 
      40           0 : template<class D> D * get_local_deleter( D * /*p*/ ) noexcept
      41             : {
      42           0 :     return 0;
      43             : }
      44             : 
      45             : template<class D> D * get_local_deleter( local_sp_deleter<D> * p ) noexcept;
      46             : 
      47             : //
      48             : 
      49             : template<class X> class BOOST_SYMBOL_VISIBLE sp_counted_impl_p: public sp_counted_base
      50             : {
      51             : private:
      52             : 
      53             :     X * px_;
      54             : 
      55             :     sp_counted_impl_p( sp_counted_impl_p const & );
      56             :     sp_counted_impl_p & operator= ( sp_counted_impl_p const & );
      57             : 
      58             :     typedef sp_counted_impl_p<X> this_type;
      59             : 
      60             : public:
      61             : 
      62      320886 :     explicit sp_counted_impl_p( X * px ): px_( px )
      63      213924 :     {
      64      213924 :     }
      65             : 
      66       88656 :     void dispose() noexcept override
      67             :     {
      68       88656 :         boost::checked_delete( px_ );
      69       88656 :     }
      70             : 
      71           0 :     void * get_deleter( sp_typeinfo_ const & ) noexcept override
      72             :     {
      73           0 :         return 0;
      74             :     }
      75             : 
      76           0 :     void * get_local_deleter( sp_typeinfo_ const & ) noexcept override
      77             :     {
      78           0 :         return 0;
      79             :     }
      80             : 
      81           0 :     void * get_untyped_deleter() noexcept override
      82             :     {
      83           0 :         return 0;
      84             :     }
      85             : };
      86             : 
      87             : template<class P, class D> class BOOST_SYMBOL_VISIBLE sp_counted_impl_pd: public sp_counted_base
      88             : {
      89             : private:
      90             : 
      91             :     P ptr; // copy constructor must not throw
      92             :     D del; // copy/move constructor must not throw
      93             : 
      94             :     sp_counted_impl_pd( sp_counted_impl_pd const & );
      95             :     sp_counted_impl_pd & operator= ( sp_counted_impl_pd const & );
      96             : 
      97             :     typedef sp_counted_impl_pd<P, D> this_type;
      98             : 
      99             : public:
     100             : 
     101             :     // pre: d(p) must not throw
     102             : 
     103             :     sp_counted_impl_pd( P p, D & d ): ptr( p ), del( static_cast< D&& >( d ) )
     104             :     {
     105             :     }
     106             : 
     107       12510 :     sp_counted_impl_pd( P p ): ptr( p ), del()
     108        8340 :     {
     109        8340 :     }
     110             : 
     111        1194 :     void dispose() noexcept override
     112             :     {
     113        1194 :         del( ptr );
     114        1194 :     }
     115             : 
     116           0 :     void * get_deleter( sp_typeinfo_ const & ti ) noexcept override
     117             :     {
     118           0 :         return ti == BOOST_SP_TYPEID_(D)? &reinterpret_cast<char&>( del ): 0;
     119             :     }
     120             : 
     121           0 :     void * get_local_deleter( sp_typeinfo_ const & ti ) noexcept override
     122             :     {
     123           0 :         return ti == BOOST_SP_TYPEID_(D)? boost::detail::get_local_deleter( boost::addressof( del ) ): 0;
     124             :     }
     125             : 
     126        4170 :     void * get_untyped_deleter() noexcept override
     127             :     {
     128        4170 :         return &reinterpret_cast<char&>( del );
     129             :     }
     130             : };
     131             : 
     132             : template<class P, class D, class A> class BOOST_SYMBOL_VISIBLE sp_counted_impl_pda: public sp_counted_base
     133             : {
     134             : private:
     135             : 
     136             :     P p_; // copy constructor must not throw
     137             :     D d_; // copy/move constructor must not throw
     138             :     A a_; // copy constructor must not throw
     139             : 
     140             :     sp_counted_impl_pda( sp_counted_impl_pda const & );
     141             :     sp_counted_impl_pda & operator= ( sp_counted_impl_pda const & );
     142             : 
     143             :     typedef sp_counted_impl_pda<P, D, A> this_type;
     144             : 
     145             : public:
     146             : 
     147             :     // pre: d( p ) must not throw
     148             : 
     149             :     sp_counted_impl_pda( P p, D & d, A a ): p_( p ), d_( static_cast< D&& >( d ) ), a_( a )
     150             :     {
     151             :     }
     152             : 
     153             :     sp_counted_impl_pda( P p, A a ): p_( p ), d_( a ), a_( a )
     154             :     {
     155             :     }
     156             : 
     157             :     void dispose() noexcept override
     158             :     {
     159             :         d_( p_ );
     160             :     }
     161             : 
     162             :     void destroy() noexcept override
     163             :     {
     164             :         typedef typename std::allocator_traits<A>::template rebind_alloc< this_type > A2;
     165             : 
     166             :         A2 a2( a_ );
     167             : 
     168             :         this->~this_type();
     169             : 
     170             :         a2.deallocate( this, 1 );
     171             :     }
     172             : 
     173             :     void * get_deleter( sp_typeinfo_ const & ti ) noexcept override
     174             :     {
     175             :         return ti == BOOST_SP_TYPEID_( D )? &reinterpret_cast<char&>( d_ ): 0;
     176             :     }
     177             : 
     178             :     void * get_local_deleter( sp_typeinfo_ const & ti ) noexcept override
     179             :     {
     180             :         return ti == BOOST_SP_TYPEID_( D )? boost::detail::get_local_deleter( boost::addressof( d_ ) ): 0;
     181             :     }
     182             : 
     183             :     void * get_untyped_deleter() noexcept override
     184             :     {
     185             :         return &reinterpret_cast<char&>( d_ );
     186             :     }
     187             : };
     188             : 
     189             : } // namespace detail
     190             : 
     191             : } // namespace boost
     192             : 
     193             : #endif  // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED